Hoover Windtunnel T-Series UH20700 9 mos old. Keeps clogging in hose just above the beater brush assembly. I think it clogs because the suction is too weak to pull much through. Primary filter is clean and HEPA filter is replaced. Even when everything is unclogged, suction is weak compared to another unit (same model) that a friend has. Any ideas?

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Hoover Windtunnel T-Series UH20700 9 mos old. Keeps clogging in hose just above the beater brush assembly. I think it clogs because the suction is too weak to pull much through. Primary filter is clean and HEPA filter is replaced. Even when everything is unclogged, suction is weak compared to another unit (same model) that a friend has. Any ideas?

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